US4237576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower device for sweeping
Assignee: ELECTRONIC SERVICES Ltd
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Filing: 1979-04-16
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Granted: 1980-12-09
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Expires: 1999-04-16
Abstract
Abstract A blower device is disclosed for sweeping light debris and clutter. The device includes a pressurized air supply source in communication with a receptacle. A standing head of pressure is developed in the receptacle and then discharged through a nozzle in a jet of air at a substantially constant pressure.
Inventors
- 👤 Charles W. Stakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:10
CPC Classifications
B; B08; B08B; B08B5/00; B08B5/02; A; A01; A01G; A01G20/00; A01G20/40; A01G20/43; A01G20/47; A47; A47L; A47L5/00; A47L5/12; A47L5/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
A sweeping device, comprising: (a) a portable housing including a receptacle forming an internal chamber to accommodate the establishment therein of a standing head of pressure, the receptacle having an air intake and a discharge port; (b) power means mounted in the housing for (i) supplying and pressurizing air in the receptacle (ii) establishing a standing head of pressure in the receptacle and (iii) forcing air into the receptacle and out through the discharge port for sweeping; (c) air directional means connected to the discharge port, for directing pressurized air in a jet, in order to sweep small debris; and (d) support means interconnected with the housing for accommodating the manual displacement of the sweeping device during use.
Claim 2
Dependent Claim
118 words
A sweeping device, comprising: (a) a portable housing including a receptacle forming an internal chamber to accommodate the establishment therein of a standing head of pressure, the receptacle having an air intake and a discharge port; (b) power means mounted in the housing for (i) supplying and pressurizing air in the receptacle (ii) establishing a standing head of pressure in the receptacle and (iii) forcing air into the receptacle and out through the discharge port for sweeping; (c) air directional means connected to the discharge port, for directing pressurized air in a jet, in order to sweep small debris; and (d) support means interconnected with the housing for accommodating the manual displacement of the sweeping device during use.
Claim 3
Dependent Claim
20 words
The device as defined in claim 1, wherein the power means comprises an electric-motor-driven impeller member mounted in the receptacle.
Claim 4
Dependent Claim
38 words
The device as defined in claim 1, wherein the means for directing pressurized air comprises a cylindrical extension connected to the discharge port and a nozzle connected to the extension in order to create the jet of air.
Claim 5
Dependent Claim
36 words
The device of claim 1 wherein the receptacle comprises a cylinder having a top end and a bottom closed end as oriented for use, and further having the discharge port along the side of the cylinder.
Claim 6
Dependent Claim
114 words
The device of claim 4 wherein the housing further includes: an annular closure member secured to the top of the receptacle for restricting the opening, a tube secured to the annular closure member for supplying the passage of air to the interior of the receptacle by way of the restricted opening; an air intake member secured to the top of the tube having venting apertures for the intake of air; and wherein the device further includes: an electric motor mounted in the tube and having an output shaft extending into the interior of the receptacle, and an impeller member mounted on the shaft internally of the receptacle for developing the standing head of pressure.
Claim 7
Dependent Claim
38 words
The device as defined in claim 5, wherein the means for directing pressurized air comprises a cylindrical extension connected to the discharge port and a nozzle connected to the extension in order to create the jet of air.
Claim 8
Dependent Claim
18 words
The device of claim 6 wherein the cylindrical extension and the nozzle are oriented substantially horizontally for use.
Claim 9
Dependent Claim
82 words
The device of claim 7, wherein the support means interconnected with the housing includes: an extended handle formed of a hollow cylindrical member mounted to the air intake, the handle extending angularly upwardly in a direction opposite to and in alignment with the cylindrical extension; and a branch handle comprising a hollow cylindrical tube mounted to the extended handle; and wherein the device further includes: a variable speed control mounted in the extended handle and being electrically interconnected with the electric motor.
References Cited (Backward Citations)
GB190815116A
Cited
US2598499A
Cited
US3003177A
Cited
US3605786A
Cited
DE2256875A1
Cited
US3959846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |